помогите решить ни как не соображу 54/9*6+42/6+57

 

КАКИЕ ИЗ ПАР(-3,4) (-2,-6) (-4.3) ЯВЛЯЮТСЯ РЕШЕНИЕМ СИСТЕМЫ УРАВНЕНИЙ X=У-7. 3Х+4У=0. 13Х-У=0 5Х-У=-4? . .

как в литературе называется повествование имитирующее речь рассказчика и ведущееся от его лица

ПОМОГИТЕ ПОЖАЛУЙСТА!!!

УПРОСТИТЬ ВЫРАЖЕНИЕ:

a) cos(альфа-90 гр)*ctg(180 гр-+альфа)-cos(-альфа);

б) sin(альфа-270гр)*tg(180-альфа)+sin(-альфа).

Come into the sitting room.

Thank you. Oh 1............. lovely flowers! Where did you buy them?

I did not buy them. There,re 2........... our garden. I can give 3........... if you like.

Yes please.

i,ll get them when it,s 4................. to go. But now 5............... have a cup of tea.

Well i must not 6.................... too late because we 7.............. dinner at 6 o clock. What is the quickest way home? i came 8.................. Is there a bus?

No 9.............. bus. I 10.................... in my car.

Thank you very much.

1 A so      B which     C what             D how

2 A came from       B coming from         C come from             D from

3 A you some      B some you                C to you few            D few to you

4 A hour            B time           C the hour        D the time

5 A let,s              B let us to        C will be              D you want

6 A ro go to       B to come to        C go          D come

7 A have              B take              C have the           D take the

8 A on foot            B by foot     C with foot               D walking

9 A not to take         B do not take a          C take no          D do not take any

10 A may bring           B may take               C can bing         D can take